Hair cosmetic composition

Abstract

Provided is a hair cosmetic composition, which contains the following components (A) and (B): (A) a hydroxy-free tricarboxylic acid having from 4 to 20 carbon atoms in total, or salt thereof, and (B) at least one or more organic solvents selected from the group consisting of aromatic alcohols, N-alkylpyrrolidones, alkylene carbonates, polypropylene glycols, lactones and cyclic ketones, wherein the organic solvent has a ClogP of from −2 to 3; and wherein the hair cosmetic composition has a pH of from 2 to 5 at 25° C. when diluted to 20 times the weight with water. Provided also is a hair quality improving method which comprises treating the hair with the hair cosmetic composition. The hair cosmetic composition of the present invention can for example give strength/body, manageability, and set retention property to the hair which is apt to be dry and moistureless owing to the damage by coloring, permanent waving, or repetition of excessive blow drying.

Description

FIELD OF THE INVENTION [0001] The present invention relates to a hair cosmetic composition containing a hydroxy-free tricarboxylic acid for providing benefits such as improving strength / body, manageability, setting power and feel of the hair. BACKGROUND OF THE INVENTION [0002] In recent years, it has been said that owing to the influence of chemical treatment such as hair coloring or physical treatment by blow drying, cuticles on the hair surface peel off or the hair becomes porous by the efflux of lipids from the inside of the hair and as a result, the hair inevitably becomes excessively dry, resistant to finger combing, difficult to style and manage, and lusterless. [0003] Commercially available hair cosmetic compositions which have been popularly used for providing the hair with manageability and protecting the hair from excessive drying are, for example, emulsion type products such as hair cream having wax, higher alcohol and surfactant, and gels having a film forming polymer (s...

AI Technical Summary

Benefits of technology

[0007] (B) at least one or more organic solvents selected from the group consisting of aromatic alcohols, N-alkylpyrrolidones, alkylene carbonates, polypropylene glycols, lactones and cyclic ketones, wherein the organic solvent has a ClogP of from −2 to 3; and

[0008] In another aspect of the invention, there is also provided a hair quality improving method, which comprises treating the hair with the above-described hair cosmetic composition.

Problems solved by technology

In recent years, it has been said that owing to the influence of chemical treatment such as hair coloring or physical treatment by blow drying, cuticles on the hair surface peel off or the hair becomes porous by the efflux of lipids from the inside of the hair and as a result, the hair inevitably becomes excessively dry, resistant to finger combing, difficult to style and manage, and lusterless.

Such hair cosmetic compositions can temporarily overcome the problems such as poor manageability and excessive dryness by causing an oil or fat or a polymer to adhere to the hair surface, but cannot fundamentally improve the strength / body or manageability of the hair.

These compositions promote manageability of the hair by softening the hair which is stiff and therefore, hard to handle.

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